I’ll provide an updated perspective - Shanghai all the way. If you want to visit Tian’anmen Square (like even walk to it), you have to make a reservation before the day you go (same-day reservations won’t work) via a WeChat mini-app that is only in Chinese and flat-out wouldn’t work for me on all of my attempts yesterday. Of course, it worked today, the only day I have left to visit. I also tried the website linked on the Chinese government page, but that also wouldn’t load.

The tech is fine when it works, but when it doesn’t, it’s an exercise in frustration and aggravating when you can’t even visit a city’s most famous public space.